If an order was made a early morning, then it's late night the next day, shouldn't the order be shipped by now? Also, if an item says "_ left at this price" shouldn't the number go down after I purchased it, or will it go down when people ship the item, or when I recieve it?

There could be up to a day delay in the change of order status or inventory level, longer if it is over a weekend or holiday.

Once an order is "processed" you can usually consider it in the process of being packed and shipped, but even after it is pysically in the mail it may be a day or longer before it is marked as "shipped" on here.